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Thomas Schwinge 7015455949 configure: Instead of for rpm 4.15+ version, test actual rpm/zstd support 
If no 'rpm' is available, we currently get:

    [...]
    checking for rpm... no
    ../git/configure: line 13119: rpm: command not found
    configure: detected rpm version:
    configure: rpm support in abipkgdiff is disabled
    [...]
    		Here is the configuration of the package:
    [...]
        Enable rpm support in abipkgdiff               : no
        Enable rpm 4.15 support in abipkgdiff tests    : no
    [...]

Notice intermixed error output: 'rpm: command not found'.

If Ubuntu focal 'rpm' 4.14.2.1+dfsg1-1build2 is available, we currently get:

    [...]
    checking for rpm... yes
    configure: detected rpm version: 4.14.2.1
    configure: rpm support in abipkgdiff is enabled
    configure: rpm 4.15 support in abipkgdiff tests is enabled
    [...]
    		Here is the configuration of the package:
    [...]
        Enable rpm support in abipkgdiff               : yes
        Enable rpm 4.15 support in abipkgdiff tests    : yes
    [...]

Notice wrong 4.15+ version detection (due to '[[ "$rpmversion" > "4.14.0" ]]'),
which is satisfied by '4.14.2.1'.  (Comparing versions with shell '[['
generally is fragile; instead use 'autoconf-archive/ax_compare_version.m4'
or similar?)

Also, 'configure'ing with '--disable-rpm415' doesn't work; same output as
before.  That's due to commit 26c41c060b
"Fix thinko in configure.ac", where either there was no thinko in fact (the
original idea, I suppose, was only if 'test x$ENABLE_RPM = xyes' to do the
4.15+ 'auto' checking?), and/or a typo: instead of 'test x$ENABLE_RPM = xyes',
the first conditional should 'test x$ENABLE_RPM415 = xyes'?

And, 'configure'ing with '--enable-rpm415' doesn't raise a hard error if 'rpm'
actually isn't 4.15+.

But all that said, we don't actually need to check for rpm 4.15+ version, but
instead may simply check for the rpm/zstd support that we need: 'rpm2cpio'.

	* configure.ac: Instead of for rpm 4.15+ version, test actual
	rpm/zstd support.
	* tests/test-diff-pkg.cc: Adjust.

Signed-off-by: Thomas Schwinge <thomas@codesourcery.com>
2021-12-17 21:13:25 +01:00
autoconf-archive Replace individual license references with SPDX Identifiers 2020-12-02 11:44:13 +01:00
bash-completion Re-license the project to Apache v2 With LLVM Exception 2020-12-02 11:49:13 +01:00
doc Add regression tests for ctf reading 2021-12-14 16:45:58 +01:00
include XML writer: use consistent type pointers for type ids and emission tracking 2021-12-09 18:41:25 +01:00
m4 Delete ltsugar.m4 and pkg.m4 files from m4/ 2015-01-06 09:54:45 +01:00
relicensing-scripts Bug 27512 - Remove broken zip-archive support 2021-03-19 10:52:57 +01:00
scripts Re-license the project to Apache v2 With LLVM Exception 2020-12-02 11:49:13 +01:00
src dwarf-reader: Workaround libdw dwarf_location_expression bug 2021-12-17 19:41:18 +01:00
tests configure: Instead of for rpm 4.15+ version, test actual rpm/zstd support 2021-12-17 21:13:25 +01:00
tools ctf-reader: Use ABG_ASSERT instead of assert 2021-11-23 15:36:06 +01:00
.clang-format Tweak clang-format configuration 2021-10-19 12:59:18 +02:00
.gitignore .gitignore: Add libabigail-?.* *.orig files 2019-05-22 14:34:23 +02:00
.mailmap Add '.mailmap' 2021-12-17 20:12:20 +01:00
abigail.m4 Re-license the project to Apache v2 With LLVM Exception 2020-12-02 11:49:13 +01:00
ABIXML-FORMAT-VERSIONS Bug 28450 - Fix cloned member function handling in DWARF 2021-11-12 18:31:28 +01:00
AUTHORS
ChangeLog Update ChangeLog for 2.0 2021-10-04 10:58:23 +02:00
COMMIT-LOG-GUIDELINES Update the COMMIT-LOG-GUIDELINES file 2016-05-22 23:20:12 +02:00
COMPILING Fix typo in COMPILING. 2020-02-03 13:49:54 +01:00
configure.ac configure: Instead of for rpm 4.15+ version, test actual rpm/zstd support 2021-12-17 21:13:25 +01:00
CONTRIBUTING Further update 'make distcheck-fast' 2021-12-17 20:23:13 +01:00
default.abignore Re-license the project to Apache v2 With LLVM Exception 2020-12-02 11:49:13 +01:00
gen-changelog.py Replace individual license references with SPDX Identifiers 2020-12-02 11:44:13 +01:00
install-sh Replace individual license references with SPDX Identifiers 2020-12-02 11:44:13 +01:00
libabigail.pc.in
license-change-2020.txt Add a license-change-2020.txt file 2020-12-02 11:50:22 +01:00
LICENSE.txt Add the LICENSE.txt file 2020-12-02 11:49:33 +01:00
ltmain.sh Replace individual license references with SPDX Identifiers 2020-12-02 11:44:13 +01:00
Makefile.am Fix tarball upload directory 2021-10-04 16:06:43 +02:00
NEWS Update NEWS file for 2.0 2021-10-04 10:57:24 +02:00
README Fix wording in README 2015-09-05 10:30:00 +02:00
release-text-template.txt Update the release text template after 1.0 2017-11-22 15:55:43 +01:00
update-copyright.sh Re-license the project to Apache v2 With LLVM Exception 2020-12-02 11:49:13 +01:00
VISIBILITY Control symbols exported from libabigail.so 2016-07-27 12:51:02 +02:00

README 

This is the Application Binary Interface Generic Analysis and
Instrumentation Library.

It aims at constructing, manipulating, serializing and de-serializing
ABI-relevant artifacts.

The set of artifacts that we are intersted is made of quantities like
types, variable, fonctions and declarations of a given library or
program.  For a given library or program this set of quantities is
called an ABI corpus.

This library aims at (among other things) providing a way to compare
two ABI Corpora (apparently the plural of corpus is copora, heh,
that's cool), provide detailed information about their differences,
and help build tools to infer interesting conclusions about these
differences.

You are welcome to contribute to this project after reading the files
CONTRIBUTING and COMMIT-LOG-GUIDELINES files in the source tree.

Communicating with the maintainers of this project -- including
sending patches to be include to the source code -- happens via email
at libabigail@sourceware.org.